Conservative UK human rights activist Benedict Rogers, who worked as a journalist for five years in Hong Kong just after the 1997 handover, has recently been a regular media commentator on the erosion of political freedoms in Hong Kong, a vocal critic of Chinese encroachment on sovereignty in the semiautonomous region, and a public supporter of Hong Kong pro-democracy activists. This week, Rogers was barred from entering Hong Kong. Tom Phillips and Benjamin Haas report